OKOH, N.; IBRAHIM, M. U.; SALIHU, M. N.; IBRAHIM, Y. Extraskeletal Osteosarcoma: A Case Report: https://doi.org/10.60787/NMJ-63-1-98. Nigerian Medical Journal, [S. l.], v. 63, n. 1, p. 86–90, 2022. DOI: 10.60787/nmj.v63i1.98. Disponível em: https://www.nigerianmedjournal.org/index.php/nmj/article/view/98. Acesso em: 10 oct. 2025.